4Return to oven; bake an additional 1 to 2 minutes or until marshmallows just begin to puff. Remove from oven; cool while preparing topping.

5In large saucepan, combine all topping ingredients except cereal and peanuts. Cook over medium heat for 2 to 3 minutes or until margarine and chocolate chips are melted, stirring constantly. Stir in cereal and peanuts. Immediately spoon warm topping evenly over baked base; spread gently to cover. Refrigerate 1 hour or until firm. Cut into bars.

Expert Tips

To make cutting bars easier, line the baking pan with foil. Turn the pan upside down and cut the foil 4 inches longer than the pan. Form foil over the pan bottom. Turn the pan right side up and position shaped foil inside the pan. When the bars are firm, lift them from the pan. Remove the foil; cut into bars.

Store leftover bars, tightly covered, at room temperature or in the freezer.